lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <48C3B909.3030405@ru.mvista.com>
Date:	Sun, 07 Sep 2008 15:20:41 +0400
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Masoud Sharbiani <masouds@...gle.com>
Cc:	bzolnier@...il.com, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: [PATCH] Fix pointer arithmetic in hpt3xx driver code (3rd try)

Hello, I wrote:
>> diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
>> index eb107ee..4eae284 100644
>> --- a/drivers/ide/pci/hpt366.c
>> +++ b/drivers/ide/pci/hpt366.c
>> @@ -613,6 +613,14 @@ static int check_in_drive_list(ide_drive_t 
>> *drive, const char **list)
>>      return 0;
>>  }
>>  
>> +static struct hpt_info *hpt3xx_get_info(struct device *dev)
>> +{
>> +    struct ide_host *host    = pci_get_drvdata(to_pci_dev(pci_dev));
>>   
>
>   Oops, this just won't compile. :-/

   BTW, there's no need to invoke to_pci_dev() at all since 
pci_get_drvdata(dev) boils down to dev_get_drvdata(&dev->dev) call. So, 
in order not to waste time on useless pointer tricks, we should just 
invoke the latter here.

>   And please re-consider passing 'struct pci_dev *' to this function 
> since it's pre-calculated by the callers and is used by them otherwise 
> in 5 (not even 4) cases out of 7.
>

   Well, since to_pci_dev() is unnecessary here, I'm taking my request 
back. :-)

MBR, Sergei


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ